Figure 1 in A taxonomic revision of the members of the Camponotus lateralis species group (Hymenoptera: Formicidae) from Europe, Asia Minor and Caucasia

Figure 1. Principal component analysis (PCA) of worker size dimorphism in 285 worker individuals of the long-headed species Camponotus atricolor, C. candiotes, C. heidrunvogtae n.sp. and C. piceus. The PCA is in fully in line with the classification by a two-step cluster analysis separating majors (dark squares) and minors (white rhombs).